2016 Subaru WRX Has A Rattling Noise

Diagnosing Common Causes of Rattling Noises in Your 2016 Subaru WRX and How to Resolve Them

Find Repair Location
Reviewed by
Devin Cabugcal
Written by RepairPal Car Genius
Updated January 14, 2025
0%
28% chance it's the
Ball Joints
0%
16% chance it's the
Struts or Strut Mount
0%
12% chance it's the
Sway Bar Links
0%
44% chance it's
Something else
The most common reasons a 2016 Subaru WRX has a rattling noise are the ball joints, struts or strut mount, or a problem with the sway bar links.
  • Ball Joints: Worn or damaged ball joints can lead to poor steering control and uneven tire wear due to compromised suspension geometry.
  • Struts or Strut Mount: A worn or damaged strut or strut mount can result in poor ride quality, excessive noise, and uneven tire wear.
  • Sway Bar Links: A worn or damaged sway bar link can result in excessive body roll and clunking noises during turns.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

What steps should I take to diagnose the rattling noise in my 2016 Subaru WRX?

When diagnosing a rattling noise in your 2016 Subaru WRX, it's essential to adopt a systematic approach to identify the issue effectively. Start by listening carefully to determine the noise's origin, as this can provide crucial clues. Commonly, rattling sounds in this model are linked to the timing chain and tensioner, particularly noticeable during cold starts or at low RPMs. Focus your attention on the front of the engine, where these components reside, and note if the noise is metallic, which may indicate a timing chain or oil pressure problem. Additionally, don't overlook the suspension system; rattling can also signal serious issues here, so inspect it thoroughly. If your efforts to pinpoint the source are unsuccessful or if the noise persists, seeking a professional mechanic's expertise is advisable to ensure your vehicle's safety and performance. By following this diagnostic approach, you can effectively address the rattling noise and maintain your Subaru WRX in optimal condition.

What are the common causes of a rattling noise in a 2016 Subaru WRX?

When dealing with a rattling noise in your 2016 Subaru WRX, it's essential to consider several common issues that could be at play. One frequent cause is the clearance between the valves and their components, which can become misaligned over time, resulting in a ticking or rattling sound, particularly noticeable at idle. Another common culprit is a loose exhaust heat shield, which serves to protect the undercarriage from the heat of the exhaust; if it becomes detached or loose, it can create an annoying rattling noise. Additionally, if you've made any aftermarket upgrades, such as installing a COBB intake or a new exhaust system, these modifications might contribute to rattling sounds, especially if they are not properly tuned or fitted. Lastly, pay attention to the exhaust system itself; rattling noises that occur at specific RPM ranges, like between 2000 to 2500 RPM, may indicate loose components within the exhaust system. By systematically checking these areas, you can identify the source of the noise and take appropriate steps to address it, whether through tightening loose parts or consulting a mechanic for more complex issues.

How urgent is it to address the rattling noise in my 2016 Subaru WRX?

When it comes to your 2016 Subaru WRX, addressing a rattling noise should be treated with a sense of urgency. Rattling sounds can signal a range of issues, from minor annoyances to serious mechanical failures. Ignoring these noises can lead to more significant problems down the line, potentially resulting in costly repairs and compromising your vehicle's performance. For instance, if the rattling is linked to the engine or exhaust system, it could escalate into a more severe malfunction that affects your car's reliability and safety. Additionally, if the noise is accompanied by other symptoms like loss of power or dashboard warning lights, it becomes even more critical to seek professional help immediately. A qualified mechanic can accurately diagnose the source of the noise, ensuring that you address any underlying issues before they lead to further damage. Therefore, it is advisable to prioritize the inspection of any rattling sounds to maintain the integrity and safety of your Subaru WRX.

You’ve got options with RepairPal

Whether you need a more accurate auto repair estimate or help finding a reputable shop in your area, we’ve got you covered.

2016 Subaru WRX Rattling Noise: Causes & Solutions